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| 型号： | TDF8599TD |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 70 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| 封装： | PLASTIC, SOT851-2, HSOP-36 |
| 文件页数： | 30/53页 |
| 文件大小： | 329K |
| 代理商： | TDF8599TD |
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TDF8599_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 30 July 2009
36 of 53
NXP Semiconductors
TDF8599
I2C-bus controlled dual channel class-D power amplier
14.2 Output power estimation (Parallel mode)
THD = 10 % as a function of the supply voltage for different load impedances in parallel
mode.
14.3 Output current limiting
The peak output current is internally limited to 8 A maximum. During normal operation, the
output current should not exceed this threshold level otherwise the output signal will be
distorted. The peak output current can be estimated using Equation 6:
(6)
Io = output current (A)
VP = supply voltage (V)
RL = load impedance ()
RDSon = on-resistance of power switch ()
Rs = series resistance of output inductor ()
Example: A 1
speaker can be used with a supply voltage of 11 V before current limiting
is triggered.
Current limiting (clipping) avoids audio holes but can cause distortion similar to voltage
clipping. In Parallel mode, the output current is internally limited above 16 A.
THD = 0.5 %.
(1) RDSon = 0.06 (at Tj =25 °C), Rs = 0.0125 ,
tw(min) = 130 ns and IO(ocp) = 16 A (minimum).
(2) RL =1 .
(3) RL =2 .
(4) RL =4 .
THD = 10 %.
(1) RDSon = 0.06 (at Tj =25 °C), Rs = 0.0125 ,
tw(min) = 130 ns and IO(ocp) = 16 A (minimum).
(2) RL =1 .
(3) RL =2 .
(4) RL =4 .
Fig 29. Po as a function of VP in parallel mode with
THD = 0.5 %
Fig 30. Po as a function of VP parallel mode with
THD = 10 %
VP (V)
818
16
12
14
10
(1)
001aai798
80
40
120
160
Po
(W)
0
(3)
(2)
VP (V)
818
16
12
14
10
(1)
001aai799
80
40
120
160
Po
(W)
0
(3)
(2)
I
o
V
P
R
L
2
+
R
DSon
R
s
+
()
×
------------------------------------------------------
8 [A]
≤≤
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDF8599TD/N2,512 | 功能描述:音频放大器 IC AMP AUDIO PWR 85W D RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TDF8599TD/N2,518 | 功能描述:音频放大器 IC AMP AUDIO PWR 85W D RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TDF8599TH | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:I2C-bus controlled dual channel 43 W/2 W single channel 85 W/1 W class-D power amplifier with load diagnostics |
| TDF8599TH/N2,512 | 功能描述:音频放大器 IC AMP AUDIO PWR 85W D RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TDF8599TH/N2,518 | 功能描述:音频放大器 IC AMP AUDIO PWR 85W D RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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